package main

import (
	"fmt"
	"log"
	"os"
)

func main(){
	logfile,err := os.OpenFile("d:/test.log",os.O_RDWR|os.O_CREATE,0);
	if err!=nil {
		fmt.Printf("%s\r\n",err.Error());
		os.Exit(-1);
	}
	defer logfile.Close();
	logger := log.New(logfile,"\r\n",log.Ldate|log.Ltime|log.Llongfile);
	logger.Println("hello");
	logger.Fatal("test");
}